Home / 120,577.29-166,405.19-66,867.45

Finding the Fourth Proportional to 120,577.29, 166,405.19 and 66,867.45

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Solution

The fourth proportional to 120,577.29, 166,405.19 and 66,867.45 is: 92,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,577.29 : 166,405.19 = 66,867.45 : x
  2. Step 2: Convert to fraction form
    120,577.29/166,405.19 = 66,867.45/x
  3. Step 3: Cross multiply
    120,577.29x = 166,405.19 × 66,867.45
  4. Step 4: Simplify right side
    120,577.29x = 11,127,090,387.73
  5. Step 5: Solve for x
    x = 11,127,090,387.73/120,577.29
  6. Step 6: Final answer
    x = 92,281.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.